42254899 has 2 divisors, whose sum is σ = 42254900. Its totient is φ = 42254898.

The previous prime is 42254837. The next prime is 42254903. The reversal of 42254899 is 99845224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42254899 - 2²⁵ = 8700467 is a prime.

It is not a weakly prime, because it can be changed into another prime (42254819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21127449 + 21127450.

It is an arithmetic number, because the mean of its divisors is an integer number (21127450).

Almost surely, 2^42254899 is an apocalyptic number.

42254899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42254899 is an equidigital number, since it uses as much as digits as its factorization.

42254899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 42254899 is about 6500.3768352304. The cubic root of 42254899 is about 348.3044496297.

The spelling of 42254899 in words is "forty-two million, two hundred fifty-four thousand, eight hundred ninety-nine".